[−][src]Trait ecdsa::hazmat::SignPrimitive

pub trait SignPrimitive<C> where
    C: Curve + ProjectiveArithmetic,
    FieldBytes<C>: From<Scalar<C>> + for<'r> From<&'r Scalar<C>>,
    Scalar<C>: PrimeField<Repr = FieldBytes<C>>,
    SignatureSize<C>: ArrayLength<u8>, {
    fn try_sign_prehashed<K: Borrow<Scalar<C>> + Invert<Output = Scalar<C>>>(
        &self, 
        ephemeral_scalar: &K, 
        hashed_msg: &Scalar<C>
    ) -> Result<Signature<C>, Error>;
}

This is supported on crate features hazmat and arithmetic only.

Try to sign the given prehashed message using ECDSA.

This trait is intended to be implemented on a type with access to the secret scalar via &self, such as particular curve's Scalar type, or potentially a key handle to a hardware device.

Required methods

`fn try_sign_prehashed<K: Borrow<Scalar<C>> + Invert<Output = Scalar<C>>>( &self, ephemeral_scalar: &K, hashed_msg: &Scalar<C> ) -> Result<Signature<C>, Error>`

This is supported on crate features hazmat and arithmetic only.

Try to sign the prehashed message.

Accepts the following arguments:

ephemeral_scalar: ECDSA k value. MUST BE UNIFORMLY RANDOM!!!
hashed_msg: scalar computed from a hashed message digest to be signed. MUST BE OUTPUT OF A CRYPTOGRAPHICALLY SECURE DIGEST ALGORITHM!!!

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Implementors

`impl<C, T> SignPrimitive<C> for T where C: Curve + ProjectiveArithmetic, T: RecoverableSignPrimitive<C>, FieldBytes<C>: From<Scalar<C>> + for<'r> From<&'r Scalar<C>>, Scalar<C>: PrimeField<Repr = FieldBytes<C>>, SignatureSize<C>: ArrayLength<u8>,` [src]

`fn try_sign_prehashed<K: Borrow<Scalar<C>> + Invert<Output = Scalar<C>>>( &self, ephemeral_scalar: &K, hashed_msg: &Scalar<C> ) -> Result<Signature<C>, Error>`[src]